11x2-55x+66=0

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Solution for 11x2-55x+66=0 equation:



11x^2-55x+66=0
a = 11; b = -55; c = +66;
Δ = b2-4ac
Δ = -552-4·11·66
Δ = 121
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{121}=11$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-55)-11}{2*11}=\frac{44}{22} =2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-55)+11}{2*11}=\frac{66}{22} =3 $

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